16630016 has 72 divisors (see below), whose sum is σ = 37773120. Its totient is φ = 7243776.

The previous prime is 16630007. The next prime is 16630049. The reversal of 16630016 is 61003661.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16629973 and 16630000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63101 + ... + 63363.

Almost surely, 2^16630016 is an apocalyptic number.

16630016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16630016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18886560).

16630016 is an abundant number, since it is smaller than the sum of its proper divisors (21143104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16630016 is a wasteful number, since it uses less digits than its factorization.

16630016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 16630016 is about 4077.9916625712. The cubic root of 16630016 is about 255.2491017046.

Adding to 16630016 its reverse (61003661), we get a palindrome (77633677).

The spelling of 16630016 in words is "sixteen million, six hundred thirty thousand, sixteen".